package com.ml.config;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.HttpMessageConverter;

import com.alibaba.fastjson.serializer.SerializeConfig;
import com.alibaba.fastjson.serializer.SerializerFeature;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;

@Configuration
public class FastjsonConfig {

	/**
	 * 注入Bean : HttpMessageConverters，以支持fastjson
	 */
	@Bean
	public HttpMessageConverters fastJsonHttpMessageConverters() {
		FastJsonHttpMessageConverter fastConvert = new FastJsonHttpMessageConverter();
		FastJsonConfig fastJsonConfig = new FastJsonConfig();
		fastJsonConfig.setSerializerFeatures(
				SerializerFeature.PrettyFormat, 
				SerializerFeature.WriteNullStringAsEmpty,
				SerializerFeature.WriteNullNumberAsZero, 
				SerializerFeature.WriteNullListAsEmpty,
				SerializerFeature.WriteMapNullValue,
				SerializerFeature.WriteBigDecimalAsPlain);
		// fastJsonConfig.setDateFormat("yyyy-MM-dd hh:mm:ss"); 全局处理时间
        SerializeConfig serializeConfig = SerializeConfig.getGlobalInstance();
        serializeConfig.put(BigDecimal.class, CustomBigDecimalCodec.instance);
        fastJsonConfig.setSerializeConfig(serializeConfig);
		// 处理中文乱码问题
		List<MediaType> fastMediaTypes = new ArrayList<>();
		fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
		fastConvert.setSupportedMediaTypes(fastMediaTypes);
		fastConvert.setFastJsonConfig(fastJsonConfig);
		return new HttpMessageConverters((HttpMessageConverter<?>) fastConvert);
	}
}
